Mitre block



FIG. 1 is a perspective view from above, one side and one end of a mitre block showing my new design;

FIG. 2 is an end elevation of the other end of the mitre block;

FIG. 3 is a side elevation of the other side of the mitre block; and

FIG. 4 is a bottom plan view of the mitre block. 

The ornamental design for a mitre block, substantially as shown. 